EP0018876B1 - Apparatus for stacking and reclaiming bulk materials - Google Patents

Apparatus for stacking and reclaiming bulk materials Download PDF

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Publication number
EP0018876B1
EP0018876B1 EP19800400496 EP80400496A EP0018876B1 EP 0018876 B1 EP0018876 B1 EP 0018876B1 EP 19800400496 EP19800400496 EP 19800400496 EP 80400496 A EP80400496 A EP 80400496A EP 0018876 B1 EP0018876 B1 EP 0018876B1
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EP
European Patent Office
Prior art keywords
conveyor
fact
chute
signal
flow
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Expired
Application number
EP19800400496
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German (de)
French (fr)
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EP0018876A1 (en
Inventor
Daniel Grandin
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Fives Cail Babcock SA
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Fives Cail Babcock SA
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Publication of EP0018876A1 publication Critical patent/EP0018876A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/28—Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/51—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
    • B65G47/5195—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for materials in bulk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/005—Control arrangements

Definitions

  • the present invention relates to the heaping and taking up of bulk materials in storage yards.
  • a handling device comprising a movable chassis on a track crossing a storage yard in the direction of its length , a boom provided with a reversible belt conveyor, said boom being mounted on a support pivoting about a vertical axis on the chassis and being tiltable around a horizontal axis of the support, an elevator conveyor supplying materials which is movable with the chassis, and a fleet conveyor arranged along the axis of the track.
  • the materials brought in by the lifting conveyor are poured onto the belt of the boom conveyor by means of a usual chute.
  • the materials removed by a shovel wheel mounted on the free end of the boom are transported in the opposite direction by the belt of the boom transporter from where they are discharged, via a chute, on the fleet transporter which brings them to a user station.
  • the object of the invention is to improve the apparatus of the aforementioned kind with a view to greater flexibility of operation.
  • a more specific subject of the invention is an apparatus for piling up and taking up bulk materials
  • a movable chassis on a track passing through a storage yard in the direction of its length an arrow provided with a conveyor belt reversible
  • said boom being mounted on a support pivoting about a vertical axis on the chassis and being tiltable around a horizontal axis of the support, a material feed elevator conveyor, movable with the chassis, and a fleet conveyor arranged along the axis of the track, characterized in that it comprises a chute with two outlets communicating by an overflow, said chute being provided at its upper part with a tilting deflector making it possible to selectively direct the materials poured into the chute by the lifting conveyor towards one or the other of the two exits, one of these exits being intended to feed the belt of the boom conveyor, the other exit being envisaged to feed the fleet conveyor by means of an extractor associated with flow adjustment means, the excess materials being discharged by the overflow to the previous outlet.
  • the extractor is advantageously constituted by a conveyor belt arranged horizontally under the corresponding outlet of the chute.
  • the extractor flow adjustment means comprise a device for measuring the flow rate of the fleet conveyor delivering a measurement signal, and a unit comparing said signal with a display signal and delivering a signal which controls the speed adjustment. of rotation of the extractor.
  • the signal delivered by said unit controls the adjustment of the height of the flap.
  • the device for measuring the flow rate of the fleet conveyor advantageously consists of a rocker.
  • the single figure is a sectional elevation view of the device.
  • the reference 1 designates the chassis of the device that is movable along a track 2 arranged, for example, on a bench arranged between two piles or two rows of piles extending longitudinally on either side. another of said bench, on a storage yard.
  • Track 2 is formed by rails on which rollers 3 roll at the base of chassis 1.
  • the reference 4 designates an arrow carrying a conveyor 5 with a reversible belt and the free end of which is provided, in a manner known per se, with a shovel wheel not shown.
  • the arrow 4 is mounted on a pivoting support 6, around a vertical axis 7, on the chassis 1 by means of a ring gear 8.
  • the arrow 4 is also tiltable around a horizontal axis 9 of the support 6.
  • the means for controlling the inclination of the boom and the means for balancing the latter, of the usual types, are not shown.
  • Reference numeral 10 designates an elevating conveyor, for example a belt, provided for supplying materials for a heaping operation.
  • the support 11 of this lifting conveyor is integral with the chassis 1 with which it is movable.
  • Reference numeral 12 designates a fleet conveyor of the india conveyor type, arranged along the axis of track 2, and intended to serve the elevating conveyor 10 and one or more stations for using materials.
  • a chute marked 14 Under the head drum 13 of the lifting conveyor 10 is arranged a chute marked 14 as a whole.
  • This chute has at its lower part two outlets, respectively 1'5 and 16, communicating by a too- full 28.
  • a tilting deflector 17 provided at the upper part of the chute 14 makes it possible to selectively direct the materials discharged by the lifting conveyor 10 into said chute, towards the outlet 15 or towards the outlet 16.
  • the materials discharged by the lifting conveyor 10 are directed, through the chute 14, to the outlet 15 from where they are discharged onto the conveyor belt 5 above which said outlet is disposed of.
  • the entire material flow is then piled up by the conveyor belt 5 circulating in the appropriate direction.
  • the deflector 17 When the deflector 17 is brought into the position shown in solid lines, the materials discharged by the lifting conveyor 10 are directed, through the chute 14, towards the outlet 16. In this case, part of the flow is conveyed to the conveyor of park 12.
  • an extractor 18 advantageously constituted by a conveyor belt. The latter drives the materials which flow onto the fleet conveyor 12 via a chute 19 placed below the outlet 16.
  • a vertical flap 20 disposed above the extractor 18 delimits in height the flow stream of the materials transported by said extractor. The position of this flap can be changed by vertical translation.
  • the flow rate of the extractor 18 is adjusted, as will be explained below, so as to obtain at its output a material flow rate equal to a displayed flow rate. If the flow rate of the elevating conveyor 10 is greater than the flow rate to be discharged onto the fleet conveyor 12, the excess materials accumulate on the extractor 18 and, when a certain height is reached, they are discharged by gravity onto the strip. of the conveyor by the exit 1'5, from the overflow 28.
  • the lifting conveyor 10 is stopped.
  • the direction of movement of the conveyor belt 5 is reversed and the materials removed by the trowel are transported by said belt which pours them onto the park conveyor 12 through the chute 19.
  • the fleet transporter 1'2 is provided with a device for measuring the flow of transported materials.
  • This device consists of a flip-flop '21 which delivers a signal representative of the value of said flow.
  • This signal is directed by the Ngne 22 to a unit 23 which compares said signal to a display signal supplied to said unit by the line 24.
  • the unit then delivers by the line 25 a signal which controls the adjustment of the speed of rotation of the extractor 18.
  • the signal supplied by flip-flop 21 is directed by line 26 to the unit 23.
  • the latter then delivers through the igne 27 a signal which controls the adjustment of the height of the flap 20.
  • the difference between the real flow rate of the fleet conveyor '12 and the displayed flow rate causes a modification of a parameter (extractor speed 18 or height of flap 20) to which the ,debit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Ship Loading And Unloading (AREA)
  • Framework For Endless Conveyors (AREA)

Description

La présente invention concerne la mise en tas et la reprise de matériaux en vrac sur les parcs de stockage.The present invention relates to the heaping and taking up of bulk materials in storage yards.

On connaît déjà (FR-A-1 426 508, DE-B-1 163 245, US-A-3 621 978) un appareil de manutention comprenant un châssis mobile sur une voie traversant un parc de stockage dans le sens de sa longueur, une flèche munie d'un transporteur à bande réversible, ladite flèche étant montée sur un support pivotant autour d'un axe vertical sur le châssis et étant inclinable autour d'un axe horizontale du support, un transporteur élévateur d'alimentation en matériaux qui est mobile avec le châssis, et un transporteur de parc disposé suivant l'axe de la voie.We already know (FR-A-1 426 508, DE-B-1 163 245, US-A-3 621 978) a handling device comprising a movable chassis on a track crossing a storage yard in the direction of its length , a boom provided with a reversible belt conveyor, said boom being mounted on a support pivoting about a vertical axis on the chassis and being tiltable around a horizontal axis of the support, an elevator conveyor supplying materials which is movable with the chassis, and a fleet conveyor arranged along the axis of the track.

Lors d'une opération de mise en tas, les ma- 'tériaux amenés par le transporteur élévateur sont déversés sur la bande du transporteur de flèche par l'intermédiaire d'une goulotte usuelle.During a heaping operation, the materials brought in by the lifting conveyor are poured onto the belt of the boom conveyor by means of a usual chute.

Lors d'une opération de reprise, les matériaux prélevés par une roue-pelle montée sur l'extrémité libre de la flèche sont transportés en sens inverse par la bande du transporteur de flèche d'où ils sont déversés, par l'intermédiaire d'une goulotte, sur le transporteur de parc qui les amène à un poste d'utilisation.During a recovery operation, the materials removed by a shovel wheel mounted on the free end of the boom are transported in the opposite direction by the belt of the boom transporter from where they are discharged, via a chute, on the fleet transporter which brings them to a user station.

L'invention a sortout pour but de perfectionner l'appareil du genre précité en vue d'une plus grande souplesse d'exploitation.The object of the invention is to improve the apparatus of the aforementioned kind with a view to greater flexibility of operation.

Elle vise essentiellement à réaliser un appareil offrant la possibilité d'alimenter en matériaux le poste d'utilisation simultanément à une opération de mise en tas.It essentially aims to produce a device offering the possibility of supplying materials to the use station simultaneously with a heaping operation.

L'invention a plus précisément pour objet un appareil pour la mise en tas et la reprise de matériaux en vrac comprenant un châssis mobile sur une voie traversant un parc de stockage dans le sens de sa longueur, une flèche munie d'un transporteur à bande réversible, ladite flèche étant montée sur un support pivotant autour d'un axe vertical sur le châssis et étant inclinable autour d'un axe horizontal du support, un transporteur élévateur d'alimentation en matériaux, mobile avec le châssis, et un transporteur de parc disposé suivant l'axe de la voie, caractérisé en ce qu'il comporte une goulotte à deux sorties communiquant par un trop-plein, ladite goulotte étant munie à sa partie supérieure d'un déflecteur basculant permettant de diriger sélectivement les matériaux déversés dans la goulotte par le transporteur élévateur vers l'une ou l'autre des deux sorties, l'une de ces sorties étant prévue pour alimenter la bande du transporteur de flèche, l'autre sortie étant prévue pour alimenter le transporteur de parc par l'intermédiaire d'un extracteur associé à des moyens de réglage de débit, les matériaux en excédent étant évacués par le trop-plein vers la précédente sortie.A more specific subject of the invention is an apparatus for piling up and taking up bulk materials comprising a movable chassis on a track passing through a storage yard in the direction of its length, an arrow provided with a conveyor belt reversible, said boom being mounted on a support pivoting about a vertical axis on the chassis and being tiltable around a horizontal axis of the support, a material feed elevator conveyor, movable with the chassis, and a fleet conveyor arranged along the axis of the track, characterized in that it comprises a chute with two outlets communicating by an overflow, said chute being provided at its upper part with a tilting deflector making it possible to selectively direct the materials poured into the chute by the lifting conveyor towards one or the other of the two exits, one of these exits being intended to feed the belt of the boom conveyor, the other exit being envisaged to feed the fleet conveyor by means of an extractor associated with flow adjustment means, the excess materials being discharged by the overflow to the previous outlet.

L'extracteur est avantageusement constitué par un transporteur à bande disposé horizontalement sous la sortie correspondante de la goulotte.The extractor is advantageously constituted by a conveyor belt arranged horizontally under the corresponding outlet of the chute.

Il est avantageusement prévu, au-dessus dudit transporteur à bande, un volet vertical délimitant la veine d'écoulement des matériaux transportés.It is advantageously provided, above said conveyor belt, a vertical flap defining the flow path of the materials transported.

Les moyens de réglage du débit de l'extracteur comprennent un dispositif de mesure du débit du transporteur de parc délivrant un signal de mesure, et une unité comparant ledit signal avec un signal d'affichage et délivrant un signal qui commande le réglage de la vitesse de rotation de l'extracteur.The extractor flow adjustment means comprise a device for measuring the flow rate of the fleet conveyor delivering a measurement signal, and a unit comparing said signal with a display signal and delivering a signal which controls the speed adjustment. of rotation of the extractor.

En variante, le signale délivré par ladite unité commande le réglage de la hauteur du volet.As a variant, the signal delivered by said unit controls the adjustment of the height of the flap.

Le dispositif de mesure du débit du transporteur de parc est avantageusement constitué par une bascule.The device for measuring the flow rate of the fleet conveyor advantageously consists of a rocker.

L'invention sera mieux comprise en se référant à la description qui suit, faite en regard du dessin annexé, concernant une forme particulière de réalisation donnée à titre d'exemple non limitatif.The invention will be better understood by referring to the description which follows, made with reference to the appended drawing, concerning a particular embodiment given by way of nonlimiting example.

La figure unique est une vue en coupe élévation de l'appareil.The single figure is a sectional elevation view of the device.

Sur la figure, le repère 1 désigne le châssis de l'appareil quei est mobile le long d'une voie 2 disposée, par exemple, sur une banquette aménagée entre deux tas ou deux rangées de tas s'étendant longitudinalement de part et d'autre de ladite banquette, sur un parc de stockage. La voie 2 est formée par des rails sur lesquels viennent rouler des galets 3 prévus à la base du châssis 1.In the figure, the reference 1 designates the chassis of the device that is movable along a track 2 arranged, for example, on a bench arranged between two piles or two rows of piles extending longitudinally on either side. another of said bench, on a storage yard. Track 2 is formed by rails on which rollers 3 roll at the base of chassis 1.

Le repère 4 désigne une flèche portant un transporteur 5 à bande réversible et dont l'extrémité libre est munie, de façon connue en soi, d'une roue-pelle non représentée. La flèche 4 est montée sur un support 6 pivotant, autour d'un axe vertical 7, sur le châssis 1 par l'intermédiaire d'une couronne à roulements 8. La flèche 4 est par ailleurs inclinable autour d'un axe horizontal 9 du support 6.The reference 4 designates an arrow carrying a conveyor 5 with a reversible belt and the free end of which is provided, in a manner known per se, with a shovel wheel not shown. The arrow 4 is mounted on a pivoting support 6, around a vertical axis 7, on the chassis 1 by means of a ring gear 8. The arrow 4 is also tiltable around a horizontal axis 9 of the support 6.

Les moyens de commande de l'inclinaison de la flèche et les moyens d'équilibrage de celle-ci, de types usuels, ne sont pas représentés.The means for controlling the inclination of the boom and the means for balancing the latter, of the usual types, are not shown.

Le repère 10 désigne un transporteur élévateur, à bande par exemple, prévu pour assurer l'alimentation en matériaux en vue d'une opération de mise en tas. Le support 11 de ce transporteur élévateur est solidaire du châssis 1 avec lequel il est déplaçable. Le repère 12 désigne un transporteur de parc du type à inde transporteuse, disposé suivant l'axe de voie 2, et destiné à desservir le transporteur élévateur 10 et un ou plusieurs postes d'utilisation des matériaux.Reference numeral 10 designates an elevating conveyor, for example a belt, provided for supplying materials for a heaping operation. The support 11 of this lifting conveyor is integral with the chassis 1 with which it is movable. Reference numeral 12 designates a fleet conveyor of the india conveyor type, arranged along the axis of track 2, and intended to serve the elevating conveyor 10 and one or more stations for using materials.

Sous le tambour de tête 13 du transporteur élévateur 10 est aménagée une goulotte repérée 14 dans son ensemble. Cette goulotte présente à sa partie inférieure deux sorties, respectivement 1'5 et 16, communiquant par un trop-plein 28. Un déflecteur basculant 17 prévu à la partie supérieure de la goulotte 14 permet de diriger sélectivement les matériaux déversés par le transporteur élévateur 10 dans ladite goulotte, vers la sortie 15 ou vers la sortie 16.Under the head drum 13 of the lifting conveyor 10 is arranged a chute marked 14 as a whole. This chute has at its lower part two outlets, respectively 1'5 and 16, communicating by a too- full 28. A tilting deflector 17 provided at the upper part of the chute 14 makes it possible to selectively direct the materials discharged by the lifting conveyor 10 into said chute, towards the outlet 15 or towards the outlet 16.

Lorsque le déflecteur 17 est amené dans la position représentée en traits interrompus, les matériaux déchargés par le transporteur élévateur 10 sont dirigés, à travers la goulotte 14, vers la sortie 15 d'où ils sont déversés sur la bande du transporteur 5 au-dessus de laquelle est disposée ladite sortie. La totalité du débit de matériaux est alors mise en tas par la bande du transporteur 5 circulant dans le sens approprié.When the deflector 17 is brought into the position shown in dashed lines, the materials discharged by the lifting conveyor 10 are directed, through the chute 14, to the outlet 15 from where they are discharged onto the conveyor belt 5 above which said outlet is disposed of. The entire material flow is then piled up by the conveyor belt 5 circulating in the appropriate direction.

Lorsque le déflecteur 17 est amené das la position représentée en traits pleins, les matériaux déchargés par le transporteur élévateur 10 sont dirigés, à travers la goulotte 14, vers la sortie 16. Dans ce cas, une partie du débit est acheminée vers le transporteur de parc 12. A cet effet, il est prévu, au-dessous de la sortie 16, un extracteur 18 avantageusement constitué par un transporteur à bande. Ce dernier entrai- ne les matériaux qui se déversent sur le transporteur de parc 12 par l'intermédiaire d'une goulotte 19 placée au-dessous de la sortie 16. Un volet vertical 20 disposé au-dessus de l'extracteur 18 délimite en hauteur la veine d'écoulement des matériaux transportés par ledit extracteur. La position de ce volet peut être modifié par translation verticale.When the deflector 17 is brought into the position shown in solid lines, the materials discharged by the lifting conveyor 10 are directed, through the chute 14, towards the outlet 16. In this case, part of the flow is conveyed to the conveyor of park 12. For this purpose, there is provided, below the outlet 16, an extractor 18 advantageously constituted by a conveyor belt. The latter drives the materials which flow onto the fleet conveyor 12 via a chute 19 placed below the outlet 16. A vertical flap 20 disposed above the extractor 18 delimits in height the flow stream of the materials transported by said extractor. The position of this flap can be changed by vertical translation.

Le débit de l'extracteur 18 est réglé, comme il sera expliqué par la suite, de manière à obtenir à sa sortie un débit de matériaux égal à un débit affiché. Si le débit du transporteur élévateur 10 est supérieur au débit à déverser sur le transporteur de parc 12, les matériaux en excédent s'accumulent sur l'extracteur 18 et, lorsqu'une certaine hauteur est atteinte, ils se déversent par gravité sur la bande du transporteur par la sortie 1'5, à partir du trop-plein 28.The flow rate of the extractor 18 is adjusted, as will be explained below, so as to obtain at its output a material flow rate equal to a displayed flow rate. If the flow rate of the elevating conveyor 10 is greater than the flow rate to be discharged onto the fleet conveyor 12, the excess materials accumulate on the extractor 18 and, when a certain height is reached, they are discharged by gravity onto the strip. of the conveyor by the exit 1'5, from the overflow 28.

Lors d'une opération de reprise le transporteur élévateur 10 est arrêté. Le sens de circulation de la bande du transporteur 5 est inversé et les matériaux prélevés par la rouepelle sont transportés par ladite bande qui les déverse sur le transporteur de parc 12 à travers la goulotte 19.During a recovery operation the lifting conveyor 10 is stopped. The direction of movement of the conveyor belt 5 is reversed and the materials removed by the trowel are transported by said belt which pours them onto the park conveyor 12 through the chute 19.

On va maintenant décrire les moyens de réglage du débit de l'extracteur 18.We will now describe the means for adjusting the flow rate of the extractor 18.

Le transporteur de parc 1'2 est muni d'un dispositif de mesure du débit de matériaux transportés. Ce dispositif est constitué par une bascule '21 qui délivre un signal représentatif de la valeur dudit débit. Ce signal est dirigé par la Ngne 22 vers une unité 23 qui compare ledit signal à un signal d'affichage fourni à iadite unité par la ligne 24. L'unité délivre alors par la ligne 25 un signal qui commande le réglage de la vitesse de rotation de l'extracteur 18.The fleet transporter 1'2 is provided with a device for measuring the flow of transported materials. This device consists of a flip-flop '21 which delivers a signal representative of the value of said flow. This signal is directed by the Ngne 22 to a unit 23 which compares said signal to a display signal supplied to said unit by the line 24. The unit then delivers by the line 25 a signal which controls the adjustment of the speed of rotation of the extractor 18.

Suivant une variante, le signal délivré par la bascule 21 est dirigé par la ligne 26 sur l'unité 23. Cette dernière délivre alors par la l'igne 27 un signal qui commande le reglage de la hauteur du volet 20.According to a variant, the signal supplied by flip-flop 21 is directed by line 26 to the unit 23. The latter then delivers through the igne 27 a signal which controls the adjustment of the height of the flap 20.

Quelle que soit la méthode de réglage utilisée, l'écart entre le débit réel du transporteur de parc '12 et le débit affiché provoque la modification d'un paramètre (vitesse de l'extracteur 18 ou hauteur du volet 20) auquel est lié le ,débit.Whatever the adjustment method used, the difference between the real flow rate of the fleet conveyor '12 and the displayed flow rate causes a modification of a parameter (extractor speed 18 or height of flap 20) to which the ,debit.

Bien que l'invention ait été décrite en référence à une forme particulière de réalisation, il va de soi qu'elle n'y est en rien limitée et que des modifications peuvent lui être apportées sans sortir de son domaine. On pourra notamment remplacer l'un quelconque des moyens décrits (bascule 21 par exemple) par un moyen techniquement équivalent. L'invention couvre donc, outre l'exemple représenté, ses différentes variantes d'exécution possibles.Although the invention has been described with reference to a particular embodiment, it goes without saying that it is in no way limited thereto and that modifications can be made to it without departing from its field. One could in particular replace any of the means described (flip-flop 21 for example) by a technically equivalent means. The invention therefore covers, in addition to the example shown, its various possible alternative embodiments.

Claims (7)

1. Apparatus for stacking and reclaiming bulk materials in a storage yard crossed lengthwise by a track (2), a yard conveyor (12) being located along the track axis, the apparatus comprising a frame (1) which moves along this track, a boom (4) provided with a reversible belt conveyor (5), a materials feed elevator conveyor (10) which moves with the frame (1) and a chute (14) with two outlets (15, 16) the first outlet (15) being provided for feeding the belt of the boom conveyor (5) and the second outlet (1'6) being provided for feeding the belt of the yard conveyor (12), characterized by the fact that the chute (14) is provided, at the top, with a swinging deflector (17) which makes it possible to direct the materials discharged into the said chute by the elevator conveyor (10) selectively to either one of two outlets (15 and 16), and by the fact that one of the chute (14) outlets is provided with an extraction unit (18) associated with flow-rate control means, the excess materials being discharged through the other outlet via an overflow (28) which connects both outlets (15 and 16).
2. Apparatus according to claim 1, characterized by the fact that the extraction unit (18) consists of a belt conveyor which is disposed horizontally under the corresponding outlet (15 or 16) of the chute (14).
3. Apparatus according to claim 2, characterized by the fact that a vertical gate (20) has been provided for above the said belt conveyor, which delimits the stream of the transported materials.
4 Apparatus according to any one of claims 1 to 3, characterized by the fact that the extracting unit (18) flow-rate control means include a flow-rate measuring device for the conveyor (5 or 12) which is fed by this extracting unit, the said device delivering a measuring signal, and a unit (23) which compares the said signal with a setting signal and which delivers a signal which controls the adjustment of the extracting unit rotation speed adjustment.
'5. Apparatus according to any one of claims 1 to 3, characterized by the fact that the extracting unit (18) flow-rate control means include a flow-rate measuring device for the conveyor (5 or 12) fed by this extracting unit, the said device delivering a measuring signal, and a unit (23) which compares the said with a setting signal, and a unit (23) which compares the said signal with a setting signal and which delivers a signal which controls the gate (20) height adjustment.
6. Apparatus according to any one of claims 4 or '5, characterized by the fact that the flow-rate measuring device for conveyor (5 or 12) fed by the extracting unit (18) consists of a weigh-scale (21).
7. Apparatus according to any one of claims 1 to '6, characterized by the fact that the outlet of the chute (14) provided with the extracting unit (1'8) is the second outlet (16).
EP19800400496 1979-04-27 1980-04-15 Apparatus for stacking and reclaiming bulk materials Expired EP0018876B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7910792 1979-04-27
FR7910792A FR2454989A1 (en) 1979-04-27 1979-04-27 APPARATUS FOR TASTING AND RECOVERING BULK MATERIALS

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Publication Number Publication Date
EP0018876A1 EP0018876A1 (en) 1980-11-12
EP0018876B1 true EP0018876B1 (en) 1982-12-01

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DE (1) DE3061195D1 (en)
FR (1) FR2454989A1 (en)

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DE3061195D1 (en) 1983-01-05
FR2454989B1 (en) 1982-07-23
FR2454989A1 (en) 1980-11-21
EP0018876A1 (en) 1980-11-12

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